FIGURE 1 in A new species of Polyipnus (Teleostei: Stomiiformes) from the western Pacific, with comments on the P. triphanos species complex

FIGURE 1. Photophores and other external features of species of Polyipnus. AFPS, anal fin pterygiophore spine; D, dorsal spinous process; LP, lateral pigment bar; 1, predorsal pigment inflection; 2, postdorsal pigment inflection. Photophore terminology, with replaced abbreviations of Baird (1971) and equivalent descriptive terms of Schultz (1961) in parentheses, except as noted for OP photophores: AC, subdivided into ACA (SAN, supra-anal), ACB (AN, anal), ACC (SC, subcaudal), BR (BR, branchiostegal), IP (I, isthmus), L (L, lateral; equivalent to a posterior OV photophore in other stomiiforms), OP (PRO, preopercular + PTO, postorbital + SO, subopercular; following Badcock, 1984), ORB (PO, preorbital), OVA (SP, suprapectoral), OVB (SAB, supra-abdominal), PV (AB, abdominal), and VAV (PAN, preanal). Reproduced, with permission, from Harold (1994: fig.1).